Tubular lantern and lamp



(No Model.)

0. L. BETTS. TUBULAR LANTERN OR LAMP.

No. 451,551. Patented May 5,1891

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UNITED STATES PATENT OFFICE.

CHARLES L. BETTS, OF BROOKLYN, ASSIGN OR TO THE R. E. DIETZ COMPANY, OF NEXV YORK, AND THE STEAM GAUGE AND LANTERN COMPANY, OF

SYRACUSE, NElV YORK.

TUBULAR LANTERN AND LAMP.

SPECIFICATION forming part of Letters Patent No. 451,551, dated May 5, 1891.

Application filed January 28, 1891. $erial No. 379,362. (No model.)

To all whom it may concern: improvements applied thereto'and ready for Be it known that I, CHARLES L. BETTs, of use; Fig. 2 is a horizontal section on a plane Brooklyn, county of K ngs, and State of New through line a: m of Fig. 1, showing the man- York, have invented certain new and useful ner of mounting and locking the ring which 5 Improvements in Tubular Lanterns and holds the globe in place. Fig. 3 is an eleva- Lamps, of which the following is a full, clear, tion of the oil-pot with its perforated exten- 5 5 and exact description, reference beinghad to sio'n as it appears when detached from the the accompanying drawings, and to the letbase of the lamp. Fig. 4 is a partial View of ters of reference marked thereon. a section on a plane through line y y of Fig.

[0 My invention relates to that class of lan- 1,sh0win'g the manner of locking the oil-pot terns and lamps wherein the air for support in place for use. of combustion is conducted from the region In all the figures like letters of referenceof the outlet for products of combustion down wherever they occur indicate corresponding to the under side of the burner-conethrough parts.

15 tubes, and commonly known as tubular A is the globe; B B, the vertical air-conlanterns and lamps. ducting tubes; 0, the oil-pot; D, the burner- While 1 herein show my improvements as cone; E, the outer wall of the base of the lanapplied in connection with a ship or signal tern structure, and F the top or dome.

, lantern, it should be understood that they In the form shown air for the support of 20 may be applied in other forms of tubular combustion enters the tubes from a perfolanterns and lamps wherein their use may be rated bell or funnel Gr, located under the top found convenient and advantageous. or dome F; butthe form and arrangement of Among the objects of my invention are the theinlet are not material. From the inlet air provision of a simple, cheap, and substantial passes down the tubes and reaches the under 25 base for the structure, which base shall, toside of the burner-cone through achannel or gether with the removable oil-pot, the pert'opassage-way closed against admission'of other rated extension thereof, and the air-oonductair, and the products of combustion escape ing tubes, form independent channels or pasat the opening beneath the dome.

' sage-ways for heated airpassing to the un- \Vithih the outer wall E of the base and 0 der side of the burner-cone and for cool air mounted on the same bottom E is erected anpassing to the exterior of the flame, the other wall or partitiop H, leaving between the provision of simple and efficient means for two a space I, into which fresh air enters from looking the oil-pot in place and closing the the exterior through perforations a 0.. Upon bottom of the chamber which receives the the wall or partition H is an inwardly-pro- 3 5 oil-pot, and the provision of a cheap and rejecting flange II, against which the top of liable means for locking the globe upon its the extension of the oil-pot bears when the 8 seat, but permitting its removal when desired. oil-pot is in place. The wall of the oil-pot is To accomplish these objects and to secure extended and perforated, as at b b, the extenother and further advantages in the matters sion being covered by a top or plate K, over c of construction, operation, and use, my imwhich the burner-cone rests, an air-passage provements involve new and useful arrangebeing thus provided over the top of the oilments or combinations of parts and peculiaripot. The lower portions of the tubes B pass ties of construction, as will be herein first through the outer wall E, through the space fully described, and then pointed out in the or passage I,and through the part tlon H, de-

45 claims. livering their contents 1nto a chamber L be- In the drawings, Figure 1 is a vertical view, tween partition H and the oil-pot, the latter partly in section and partly in elevation, be ng of shorter diameter than the said parshowing an illuminating apparatus 111 the tition for the purpose of affording the desired form of a ship or signal lantern having my chamber. From this chamber air passes through the perforations l1 and up to the under side of the burner-cone.

To close the bottom of chamber L, so that no passing current of exterior air or wind will disturb the contents of the chamber, the oilpotis supplied with a flange M, which extends Well beyond the margin of the opening in the bottom of the structure through which the oil-pot is inserted, and this flange is crowded up to a tight joint with the bottom by the means adopted for locking and holding the oil-pot in place, which will be hereinatterexplained.

The globe rests upon the ring or wall E, and is there secured when the lamp is in use. Air from the exterior enters through perforations a and passes up into the globe through the open top of chamber I. 'lheperforations a are made small or fine, so as to prevent the admission of violent currents of air, thus maintaining a steady light, at the same time keeping the globe cool and supplying the requisite amount of air for the interior of the flame-chamber, as in other forms of tubular lanterns.

The oil-pot is detachable bodily from the base of the structure, so that it may be filled and cleaned, and the opening then left in the base is amply large to aiIord access to the interior of the globe for cleaning, the base being strong and well braced upon the tubes by reason of the double connections with their lower extremities.

Upon the lower portion of the oil-pet are projecting pins 0 c entering corresponding slots in the inwardly-projecting margin of the base or bottom E and riding upon the upturned portions or edges (Z (Z between said slots, the said upturned portions or edges being slightly inclined.

By turning the oil-pot after it has been adj usted to place the flange M can be crowded to its seat with any desired pressure, and the pot locked in place against any accidental disarrangement or disturbance.

For convenience in turning and handling, the oil-pot is supplied with a cross-handle N, applied on its base.

The globe is held to its seat by a ring 0, which bears upon the upper margin of the globe and slides up and down closely inside the wall I or the upper portion of the lantern to economize space at this portion. Projecting pins (2 c extend from ring 0 out through angular slots f in the wall I. These slots and the pins therein are covered by exterior capplates g, through one of which projects a locking-spring l1. \Vhen the ring 0 is down upon the globe and turned sul'liciently, the spring prevents any accidental movement, and may be released whenever required to remove the globe. \Vhen the ring 0 is raised, it may be held in elevated position by turning the pins in the upper horizontal branches of the slots provided for them. This arrangement is compact, avoids the necessity of complicated fittings for the purpose of holding and releasing the globe, and leaves the lantern unencumbered at the top.

The wire guard and the means of suspending the lantern may be varied as occasion may require. The wick-raiser is by preference operated by a shaft projecting down through the oil-pot, as shown, so that the flame may be regulated without disturbing the oil-pot.

llavingnow fully described my invention, what I claim as new herein, and desire to secure by Letters Patent, is-

1. In a tubular lantern, the combination of an outer perforated base-wall, an inner partition, air-conducting tubes passing through both said wall and partition, and a removable oil-pot having an air-passage formed on its top, these parts being arranged to afford passages for air from the tubes and from the exterior of the lantern, substantially in the manner and for the purposes set forth.

2. I11 a tubular lantern, the combination, with the removable oil-pot, the base or bottom of the lantern, and the air-chamber formed around the oil-pot, of a flange applied to said oil-pot and adapted to close the lower opening in said chamber, substantially in the manner shown and described.

3. In a tubular lantern, the combination, with the base-piece supporting an outer and an inner wall and having an inwardly-projecting slotted and upturned flange, of the removable oil-pot provided with projecting pins, substantially as and for the purposes set forth.

I. In a tubular lantern, the combination of the removable globe, a globe-holding ring fitting the upper vertical wall of the lantern and provided with projecting pins passing through slots in said wall, a retaining-spring, and cap-plates covering the pins, substantially as shown and described.

In testimony that I claim the foregoing I have hereunto set my hand in the presence of two witnesses.

CHARLES L. llE'lTlS.

Witnesses:

I. .T. ALLEN, J. l llEANEY. 

